Top Posters
Since Sunday
b
4
o
3
s
3
j
3
b
3
m
3
K
3
g
3
L
3
w
3
m
3
j
3
Home Q & A Board Biology-Related Homework Help General Biology
New Topic  
mrsbmarie mrsbmarie
wrote...
Go to Answer
Posts: 291
Rep: 0 0
6 years ago
During intense physical exercise, human cells and tissues increase their need for oxygen to provide the ATP necessary for work. Why does heart rate have to increase to meet the need for oxygen?
Read 52 times
1 Reply
Replies
Answer verified by a subject expert
Mhartman97Mhartman97
wrote...
#1
Posts: 194
Rep: 36 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
This verified answer contains over 100 words.
1

Related Topics

mrsbmarie Author
wrote...

6 years ago
Good timing, thanks!
Liarec
wrote...

Yesterday
You make an excellent tutor!
MLynneMcMillan
wrote...

2 hours ago
This helped my grade so much Perfect
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1192 People Browsing
 123 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 98
  
 294
  
 746
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 436
Previous poll results: Do you trust social media networks with protecting your privacy?